Welcome to HVAC-Talk.com, a non-DIY site and the ultimate Source for HVAC Information & Knowledge Sharing for the industry professional! Here you can join over 150,000 HVAC Professionals & enthusiasts from around the world discussing all things related to HVAC/R. You are currently viewing as a NON-REGISTERED guest which gives you limited access to view discussions

To gain full access to our forums you must register; for a free account. As a registered Guest you will be able to:

Participate in over 40 different forums and search/browse from nearly 3 million posts.

Barber Colman GCM and LCM

I am in need of a GCM-84211-1 I have found a site with one used module but would like one that is new or repaired. Could someone point me in the right direction toward other surplus suppliers? Also I need the default keypad access for an LCM for this sytem. I am no longer a field tech but, I'm quite sure it is the factory default because I have accessed them before a few years ago and I know I wrote it down somewhere!! but have grown OLD and forgetful.
Any Help would be greatly appreciated.

LCM key-in

Press the "up" arrow then the "right" arrow then "enter". You can mostly only view with that logon. If you can use xpsi or hyperterminal into the LCM, you can edit the user properties to allow full access from the keypad. I will post how to do that when I remember how.

Barber Colman GCM and LCM

Thanks Much.
I thought for sure that I've accessed it before and as a superuser and made changes through the keypad using the + and - for setpoint changes and such on the loops but, the old grey matter is burning out so I could be mistaken?

Barber Colman GCM and LCM

Thanks Mike, I have purchased a GCM. I have covered every path I know at this point other than contacting a TAC dealer but, I'm fairly sure I'll not be able to get any tech assistance from a factory office.

Thanks Mike, I have purchased a GCM. I have covered every path I know at this point other than contacting a TAC dealer but, I'm fairly sure I'll not be able to get any tech assistance from a factory office.

They would probably help you, gave that same advice to someone else here and they called the factory and got a default password. its up to you, its your time.